The heavily advertised *$0 stock trading site Zecco has added something new in beta that allows sharing investment data across members they’re calling Zeccoshare.

It’s open and getting involved requires free registration or, if you’re already trading on Zecco, activating your profile.

In the announcement email sent to all community members, they are claiming to have 70,000 members. This is an optional service that those with Zecco accounts must activate their profiles to use. If you choose to elect to share trading (pictured below), which again is completely optional, the actual dollar amounts of your trades are not disclosed, only what investments you’re buying and selling and the percentage to your overall Zecco portfolio are shared.

Also, the Motley Fool CAPS rating is next to each stock. You can check out what my Zeccoshare profile looks like:

My wife and I have already been sharing the Google spreadsheet with the dollar amounts and additional details as part of our friendly stock competition we started a couple months ago. For those new, here’s what we’re doing: we started with $500 USD and are making trades through Zecco and tracking the trades using Google spreadsheets so others can follow along in near real time. Understanding this history, I don’t mind sharing this information at Zecco too, as third party verified data showing I’m actually making the trades indicated in the Google spreadsheet I’m making add credibility. Or perhaps, when your overall portfolio is -11.10% like mine currently is, take some away.

My wife who is roundly kicking my butt in the competition, with a current portfolio +20.72% as of his writing, doesn’t seem interested in Zeccoshare yet. But when I first mentioned Zeccoshare to her it was three o’clock in the morning. Later today or in the coming days when she’s more awake she might be more receptive to activating her profile. Her decision, of course.

*As of January 1, 2007, the Zecco free trades will be going away unless one or both of us add more money to our accounts, or get on an extraordinary streak. The minimum account balance for 10 free trades a month at Zecco will be changed to $2,500 USD for existing members and is already there for new members.

Now if only Zecco would add some sort of API to let us get to this shared data programmatically … (hint, hint).

• Zecco free trades going away, unless you have $2,500 minimum balance
• 2007 stock competition results and free real time stock quotes
• Paying first Zecco commissions, taking first loss
• Picking stocks by name strategy
• Sharebuilder rocks!
• Collect money online from group with Chipin